From: Frank Li <Frank.Li@nxp.com>
To: Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
imx@lists.linux.dev (open list:ARM/FREESCALE IMX / MXC ARM
ARCHITECTURE),
linux-arm-kernel@lists.infradead.org (moderated
list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 1/1] arm64: dts: imx8mp-evk: add PCIe Endpoint function overlay file
Date: Tue, 1 Oct 2024 14:37:47 -0400 [thread overview]
Message-ID: <20241001183748.256607-1-Frank.Li@nxp.com> (raw)
PCIe of i.MX8MP is dual role PCIe controller, which can work as root
complex (RC) mode and endpoint (EP) mode. Add overlay file to let it work
as EP mode.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
arch/arm64/boot/dts/freescale/Makefile | 2 ++
.../boot/dts/freescale/imx8mp-evk-pcie-ep.dtso | 18 ++++++++++++++++++
2 files changed, 20 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 9d3df8b218a2e..0d8cf020ec2dd 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -197,7 +197,9 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-mallow.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-yavia.dtb
imx8mp-evk-mx8-dlvds-lcd1-dtbs += imx8mp-evk.dtb imx8mp-evk-mx8-dlvds-lcd1.dtbo
+imx8mp-evk-pcie-ep-dtbs += imx8mp-evk.dtb imx8mp-evk-pcie-ep.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk-mx8-dlvds-lcd1.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk-pcie-ep.dtb
imx8mp-tqma8mpql-mba8mpxl-lvds-dtbs += imx8mp-tqma8mpql-mba8mpxl.dtb imx8mp-tqma8mpql-mba8mpxl-lvds.dtbo
imx8mp-tqma8mpql-mba8mpxl-lvds-g133han01-dtbs += imx8mp-tqma8mpql-mba8mpxl.dtb imx8mp-tqma8mpql-mba8mpxl-lvds-g133han01.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso b/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso
new file mode 100644
index 0000000000000..400e36db9dccf
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie-ep.dtso
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2024 NXP
+ */
+
+/dts-v1/;
+/plugin/;
+
+&pcie {
+ status = "disabled";
+};
+
+&pcie_ep {
+ pinctrl-0 = <&pinctrl_pcie0>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
--
2.34.1
next reply other threads:[~2024-10-01 18:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-01 18:37 Frank Li [this message]
2024-10-21 8:24 ` [PATCH 1/1] arm64: dts: imx8mp-evk: add PCIe Endpoint function overlay file Shawn Guo
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